RB Annis 115-S (Short) Han-D-Mag 2 1/4 Inch 115 V Demagnetizer-by Annis

Does this have an "on body, hold down to work" power switch? As I see it, anything else is just an inadvertant media erasing accident in waiting.

does it have an operating button?

Can i demagnetize a steel table frame with this unit? can i just touch frame? the table frame was magnitized by high powered magnets.

can you demagnetive stereo speakers